Electric furnace resistor support



April 14, i925.

`wmf asses:

Patented Apr. ld, l925.

lli la :MANUFACTURING COMPANY, A COEPGRlTIOLl F PENNSYLVQ:Ul.

ELECTRIC FURNACE RESIVSTOR SUPPET.

Application filed October l2%, 1922-. Serial No,.596,55l.

To nl] yir/iomy i/r muy; concern.'

Be it known that l. (lim A. Comu'. a citi- Zen of the. United States, and a resident,` of

liwin, in the county oi lVestinorel-and. and

5 `State oi Pennsylvania, have invented a new and particularly to electrioresistaneo `tui'` naces.

The. object of my invention is to provide a relatively small, rugged and compact means for supporting a resistor in a furn nace chaiiiher.

ln practicing; my invention, l provide a 'plurality ot' relatively narrow and elongated refractory supporting` members, of substantially T-shape iu lateral section, the inner edge of whichl provided with integral. laterally extending llangi'es that. are supported by a suitable means integral with the walls ot a furnace chamber. Each of the relatively narrow and elongated members is :provided with a plurality ot' laterally extending slots adjacent. the outer narrow edge thereof, and a refractory ke member, sub- Stantially co-extensive witi the narrow elongated refractory supporting member,

30 has a dove-tail Connection therewith and ismovable in a. longitudinal direetion relatively thereto.

A plurality ot' tlmnarrow :.iml'elougated refractory inemhers are loeateil' in spared relation in a. tui-nare eliamber and a pre; formed, relatively henry., resistor member extends between the said supporting, 'mem-4 bers and therebeyond, passing' through the lateral'slots and supported directly bythe key members.

ln the single sheet of drawings,

Figure l is a View, in vertical lateral seetion, of an electric resistance furnace com prising the device embodying my invention, Fig. 2 is a View, in vertical longitudinal seetion, taken ou the line ll-ll of Fig. l,

Fig. 3 is a View, in side elevation, ot', a narrow elongated resistor-supporting inernher and a key member coinynising a part ot the device en'ibodying' my invention,

Fige is a View in end elevation,

Fig'. 5 is a View, in side elevation, 01"' a modified form ot a refractory resistor-supporting member, together with a key inem- Fig. G is a view, in end nien'ibers illustrated inI Fig.

An electric-resistance turna generally by the numeral ll,

i outer metallic easing' l2 of any suitable or desired Contour and dimensions and provided with a .plurality ot metal suppoi'tin.;r fin outer lininglll comprises a plurality ot members :l suitably secured thereto,

bricks or blocks of a suitable ieitreeti'iry heat-insnlatiiin,r material. .lj l5 comprises a plurality of bricks l" ot a .suitable refractory high-temperatt.iresisting material, the bricks compris" two linings being,r so loeated as to provi e furnace chamber 16 of any suitable or desired contour and dimensions.

plurality ot' relatively' narrow and elongated refractory supporting members 1T, ot' substantially "lshape in crosseeetion are supported by the brielxsor loloelis oit' the inner lining l5, the bloelrs immediately adjacent the narrow members l? loeii'ig; nrorided with projecting shoulder portions lt? to cojoperate with the intefrral lateral flanges of the supporting,- members l? to siiyiport them in substantially the positions illu ed in Fig. 2 of the drawing.

The members l? are spaced apart any suitable or desired distance, and the monibers located in the side walls and iii the ceiling;r may be loeatedin aliiiei'nent with each other. ln order To 'permitot removing 4a. damagedretraetory member lj?, provision is made to permitl of ren'iovi-iig one or more ol' the hrirks or blotks in the outer lining; ll, loeated immediately outside ot the nai-- row members ll, and these quickly reinos able. men'ibers are designated by the numeral 19 in Fig'p of the drawing. lt, is to he understood that as many of these removable bricks 19 are provided as may he neoe'ssary to permit of easilynind quickly reiiioving 'the members l? from the roof o t the. 'turynace or tromtlieside walls of the urnaee.,

Each of the members 17 is provided with a plurality otl slots 2l which extenddaterally therethrough adjaeeiit the inner narrow edge thereof, substantially as illustrated in Fig. 3 ol the drawing. It slot 32, et stantially trapexoidal torni in lateral see-- tion.rv extends longitiulinally o' theniei-aher 17 immediately adjacent, to and below the outer edge portion thereof, as illustrated more particularly in Fin'. ol' ther drawing.

n inner linine lill' ria ile resisler rein and eL-encl snpperted by the eiv eernprises relen @nimble regis i ieireine5 'which is 1 irefity el? in- ,3 enel-connected nce lieween lire acleei'g snlisnnnielly the nenfeen l e slots 9,1 in

i resister porting ers lil .l have l] nerel rereemrj; snpper'bing having an inner si; 1L e, is provided i nig liiernlly extend- U`elrv n thickenefl Ked, plurnliy y ilu/'engi bile memH fliielened edge #einher 2e opere- `Agertinn te (liy eimnnel i fer-hanging I i :ly es illustrated iirefwing' *e iii; over 'thickie member 25 Une member el itivolv engage.

elemen in die .l wie plncel in lieir ,imie:l Sniisanninliy es lie drawing', nffer )er 2li 'placed in its l7 te their proper 1 veljv 'limi-ete, ilv lieribell, 3 ieen mail@ in die te gif-rmi? or' i7' in their nlm ite `per EB rn" Q9 inle inns relnivelj;

'nii-li 'limp' Onereemi may be meile any Snizilile er ilesirm'i amount in order that sniiieieni: mechanical strength may be provided its snp-port the resister member Q4, and the relative prnporiaions er' ille respective key nien'wnere iS sneli es to 'obtain he greatest strength in ne! cerdenee with alie lai'eral thickness o' the members 1'? 'Various changes in detail and arrangement may be mede Witheet (lepering :lf-rem ile Spirit and scope ef elle invention en@ nele morlienniens are intended "ie lie env` red 'by the appended claims.

l Gleim es my invention: l

L resisereilpperting means @empris- :i refreeiery electric-insulating fa of Substantially "iT-shape in ereee-see'lien nml having plurality f A i epneecl-epzirt member 'having :fr long* filly filing clevenil connection with sind ine-nim of @need-apen elongated relatively nefnfw,

ef act rv eleetrednsnleing inem? subsza nelly/Rellene 1n erceeee leaving a plurality of laterali?, e sione in the enter edge thereof, n 'resister member comprising :L relatively heavy enel L nnyeilcling Conductor prefermecl in se, prie@ :L plurality of parallel-extending nel end- Conneced eonvolntions liziving porionfl; nl! each eonvolntien lying' in sii-id eine: :imi lending between sind beyond @nifl reigw'nr ing e dovezrii connection with the einer el n' portions of seid members of T-simcne i removable longitudinall)r thereof.

1. 'In L resistor supporting mean?y for nn electric resistance furnace, in enniib'inui'inm en elongated, relatively narrow, re'irae electric-insulating member of enbs'mnii slmpe in cross-section and having n, nlnmlity of laterally extending Slof'cs in he Outer edge "thereof, and n. re'frnefery key member haviner n devemil eonneeiien wf Seial elongated refrnclmy member 0'1"' shape nnfi removable lenigtnflinnily @livrefrom.

fi. resister-ei'lpnming' menne comprisI` ing; n 'refractory relatively narrow e'/ i innnlazing' men'ilier, mi' Snlisisnitinily i 1, in mnes-seetien sind having n pinrniil, j w' Spme-npnrf; 'miie/rally efdenfling4 Slain in Dizier. edge thereof for receiving a, resisten men'l'ber therein, and 5L l'efmetory key member having e dove-tail connection with suie member of T-smpe and movable longitudinallg thereof to operatively engage the same 01j be deengaged therefrom.

G. i 'esstor-supporting means comprising a 'efractory eleotricdnsulating member, of substantially "lf-Shape in cross-section and 10 having L phuali'l'y of lai'ez'ely extending '/.4

spaced slots, and a longitudmany-extending slof, of dovefmll form, in the outer edge thereof, and a refractory key member, of'

subscribed my name this 13th day of October 1922.

ORA A. COLBY. 

